Device for cleaning scale from atmospheric-condenser pipes



July 20, 1926. 1,593,542

S. D. SHOEMAKER DEVICE FOR CLEANING SCALE FROM ATMOSPHERIC CONDENSERPIPES Filed Feb. 15, 1924 FIG. 7.

W H HEW Willfl il "l liililllllf e Patented July 20, 1926.

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" f FATE? SAMUEL I). SHOEMAKER, F PORTSMOUTH, OHIO, ASSIGNOR 0FFORTY-NINE ONE- HUNDREDTHS TO GEORGE V7. SHEPPARD, OF PORTSMOUTH, OHIO.

DEVICE FOR CLEANING SCALE FROIVI ATMOSPHERIC-CONDENSER PIPES.

Application filed February 15, 1924.

This invention relates to a' device for cleaning scale from atmosphericcondenser pipes.

As a rule the pipes of all condensers of this type are closely nestedand lie parallel to each other thereby leaving little room for themanipulation of a tool of this character.

The object of my invention is to produce a cleaner of this type whichcan be operated in comparatively small space and one which is adjustableto different pipes.

In the accompanying drawings:

Figure 1 is a side elevation of the improved device; and

Fig. 2 is an edge view thereof.

he numeral 1 indicates the body portion the upper end 2 of whichterminates in a circular jaw. Arranged on the inside of the 2 are aplurality of transverse grooves 3 in which are received the triangulaushaped scrapers 1. The numeral 5 inclicates a jaw pivoted as at 6 to thebody portion 1. This jaw likewise is provided with a plurality ofgrooves 7 which are adapted to receive a plurality of triangularshapedscrapers 8. The jaws 2 and 5 do not form a continuous circle there beingan opening 9 between the outer ends thereof which permit the scraper tobe applied to the pipe. Extending laterally from the body portion 1 arethe lugs 10 and 11. The lug 10 is screw-threaded to receive an adjustingscrew 12, the inner end of which engages the pivoted 5 whereby the saidjaw may be adjusted relative to the diameter of the pipe to force thescrapers through the scale of the pipe. Lock-nutsl are arranged back ofthe lug 10 to regulate the forward movement of the adjusting screw 12.The outer end of the adjusting screw 12 is provided with a knot orhandle 1a.

In use the adjusting screw 12 is turned back whereupon the jaw 5 isopened up sufficiently to pass around the pipe after which the saidscrew is moved forwzvdly forcing the jaw 5 into contact with the pipeand compressing the scrapers against the periohery of the pipe. In thisparticular construction there are five spaces at equal distance aroundthe inner circumference of the jaws 2 and 5. Therefore, with one-fifthof a revolution the scrapers will contact with the entire outer surfaceof the pipe. By pressing to the right or left in the act of rotating thetool the latten will move Serial No. 693,146.

longitudinally on the pipe scraping the entire surface.

From the above it will be seen that I have devised a scraper adapted forthe use specified and one which consists of comparatively few parts andis very effective when in operation. It is obvious that mor or lessslight changes may be made in the actual structure of thisdevice withoutde-- parting from the general scope of the invent-ion and I do not wishto be limited to the exact structure shown.

I claim:

1. A scale removing tool including a body portion terminating at one endthereof in a segmental scraping jaw, a cooperating scraping jaw pivotedto said body portion at the base of said segmental jaw, and scraperscarried by said jaws.

2. A scale removing tool including a bod y portion forming a handleterminating at one end thereof in an integral scraping jaw, acooperating segmental scraping jaw civoted to said body portion at theintersection between said first-mentioned jaw and the handle, andscrapers carried by said aws.

3. A scale removing tool including a body portion forming a handleterminating one end-thereof in an integral scraping jaw, a cooperatingsegmental scraping jaw pivoted to said body portion at the intersectionbetween said tirst-mentioned jaw and the handle, one of said jaws beingof greater circumferential length than the other to form a hook jaw, andscrapers carried by said jaws.

4:. A scale removing tool including a body portion terminating in a jaw,a movable jaw pivoted thereto and having a flattened portion on the backface thereof, scrapers carried by said jaws, lugs extending outwardlyfrom the body portion, and an adjusting screw arranged substantiallyparallel with the body portion and extending through the lugs inposition to engage the flattened portion on the back face of the movablejaw for adjusting said movable jaw relative to the first mentioned jaw,said body portion and screw forming a handle for operating andmanipulating the scale removing tool.

In testimony whereof I affix my signature.

SAMUEL D. SHOEMAKER.

